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Make
CATERPILLAR
Model
631K (S/N WT600001 - Up) (Tractor Scrapers)
Engine
DT
Year
2017-

Application
Recommendation
Capacity (gal)
Data Sheet
Sales Sheet
Engine (DT) (Cat C18)
Premium
Maxtron DEO SAE 15W-40
(a, b)
13.7
PDS
Mainline
Superlube TMS SAE 15W-40
PDS
Transmission
Premium
Maxtron Power Transmission Fluid MV
(c, d, e, f, g)
29.1
PDS
Mainline
Power Transmission Fluid SAE 30
PDS
Differential
Ultra Premium
Maxtron Enviro-EDGE GL 75W-90
(h, i, j)
40.4
Premium
MP Gear Lube SAE 80W-90
PDS
Final Drive (each)
Ultra Premium
Maxtron Enviro-EDGE GL 75W-90
(k, l, m)
2.38
Premium
MP Gear Lube SAE 80W-90
PDS
Coolant
Refer to Technical
(n)
18.8
Hydraulics
Indol EH ISO 46
(o, p, q, r)
37.5
PDS
Grease Points
HD Moly Xtreme NLGI 2
(s)
Grease Points (Engine Fan Drive Bearings)
Refer to Technical
Air Conditioning Compressor (R-134a)
Refer to Technical
0.084
Scraper Wheel Bearings (non-driven)
Power Transmission Fluid SAE 50
(t, u, v, w)
8.72
PDS
Engine (DT) (Cat C18)
Recommendation:
Premium Maxtron DEO SAE 15W-40
PDS
Mainline Superlube TMS SAE 15W-40
PDS
(a, b)
Capacity 13.7(gal)
Transmission
Recommendation:
Premium Maxtron Power Transmission Fluid MV
PDS
Mainline Power Transmission Fluid SAE 30
PDS
(c, d, e, f, g)
Capacity 29.1(gal)
Differential
Recommendation:
Ultra Premium Maxtron Enviro-EDGE GL 75W-90
Premium MP Gear Lube SAE 80W-90
PDS
(h, i, j)
Capacity 40.4(gal)
Final Drive (each)
Recommendation:
Ultra Premium Maxtron Enviro-EDGE GL 75W-90
Premium MP Gear Lube SAE 80W-90
PDS
(k, l, m)
Capacity 2.38(gal)
Coolant
Recommendation:
Ultra Premium Refer to Technical
(n)
Capacity 18.8(gal)
Hydraulics
Recommendation:
Mainline Indol EH ISO 46
PDS
(o, p, q, r)
Capacity 37.5(gal)
Grease Points
Recommendation:
Premium HD Moly Xtreme NLGI 2
(s)
Grease Points (Engine Fan Drive Bearings)
Recommendation:
Ultra Premium Refer to Technical
Air Conditioning Compressor (R-134a)
Recommendation:
Ultra Premium Refer to Technical
Capacity 0.084(gal)
Scraper Wheel Bearings (non-driven)
Recommendation:
Mainline Power Transmission Fluid SAE 50
PDS
(t, u, v, w)
Capacity 8.72(gal)

General Notes

There are no notes to display for this model

Lubricant / Capacity Notes

a.
14°F to 122°F
b.
Alternative recommendations, 0°F to 104°F: Maxtron DEO SAE 10W-30 / Superlube TMS SAE 10W-30
c.
32°F to 95°F
d.
Alternative recommendations, -4°F to 109°F: Maxtron Power Transmission Fluid MV
e.
Alternative recommendations, -4°F to 50°F: Power Transmission Fluid SAE 10W
f.
Alternative recommendations, 32°F to 95°F: Maxtron Power Transmission Fluid MV / Power Transmission Fluid SAE 30
g.
Alternative recommendations, 50°F to 122°F: Power Transmission Fluid SAE 50
h.
-4°F to 104°F
i.
Alternative recommendations, -22°F to 113°F: Maxtron GL 75W-140
j.
Alternative recommendations, 14°F to 122°F: Maxtron GL 75W-140 / MP Gear Lube SAE 85W-140
k.
-4°F to 104°F
l.
Alternative recommendations, -22°F to 113°F: Maxtron GL 75W-140
m.
Alternative recommendations, 14°F to 122°F: Maxtron GL 75W-140 / MP Gear Lube SAE 85W-140
n.
Mix ratio, 50% >-37°C
o.
23°F to 113°F
p.
Alternative recommendations, -4°F to 104°F: Refer to Technical; Maxtron DEO SAE 10W-30 / Superlube TMS SAE 10W-30
q.
Alternative recommendations, 5°F to 122°F: Maxtron Power Transmission Fluid MV
r.
Alternative recommendations, 32°F to 122°F: Refer to Technical
s.
Alternative recommendations: Maxtron EP NLGI 2
t.
5°F to 90°F
u.
Alternative recommendations, 5°F to 122°F: Refer to Technical
v.
Alternative recommendations, 5°F to 90°F: Refer to Technical
w.
Alternative recommendations, 19°F to 122°F: Refer to Technical

Oil Change Intervals

Engine (DT) (Cat C18)
Months Max
3
Hours Max
500
Transmission
Months Max
6
Hours Max
1000
Differential
Months Max
12
Hours Max
2000
Final Drive (each)
Months Max
12
Hours Max
2000
Coolant
Months Min
36
Months Max
72
Hours Min
6000
Hours Max
12000
Hydraulics
Months Max
18
Hours Max
3000
Scraper Wheel Bearings (non-driven)
Months Max
12
Hours Max
2000